Composite insulator materials can be highly desirable materials for various types of electrical and mechanical applications because of their excellent specific properties.

In HV applications, Glass Reinforced Polymer composites have been widely used in the designs of composite transmission line insulators, transmission and distribution towers, and in substation applications.

Composite suspension insulators also referred to as either non-ceramic, polymer or polymeric insulators are used worldwide in overhead transmission line applications with line voltages in the range of 69 kV to 735 kV.